Battery Installation Instructions; Installation In Hazardous Areas; Preparation And Mounting - Emerson PACSystems RX3i User Manual

PACSystems™ RX3i Battery & Energy Pack User Manual
GFK-2741K
CPU Battery Low Indication
The IC693ACC302 Auxiliary Battery module will not reliably provide the CPU with a battery
low indication. User logic should not rely on any of the battery status bits when using this
battery.
Diagnostics
This unit is not user-serviceable. The unit has a built-in 1-Amp fuse that will open if the unit
is subjected to a short circuit or severe overload condition. This fuse is sealed inside the
battery pack and is not replaceable.
To test the unit if you suspect that the fuse has opened, turn off PLC power, unplug the
battery unit, and carefully check the battery cable connector pins for presence of voltage
with a volt meter. If voltage is present, the fuse is not open. If no voltage is present, the
internal fuse has probably opened, and the unit will have to be replaced. Only perform this
check in a non-hazardous environment.
2.7

Battery Installation Instructions

WARNING
Explosion Hazard - Do not add, remove, replace or recharge a battery unless the area is
known to be non-hazardous.
2.7.1

Installation in Hazardous Areas

Install the CPU in a system that is located outside the hazardous area.
Apply power to the system and install the battery.
Power the system down.
With the battery still attached, remove the CPU and install it in the system that is in the
hazardous area.
2.7.2

Preparation and Mounting

If installing an auxiliary battery (IC693ACC302 or IC695ACC302), securely mount the
battery to the panel mounting surface before attempting to connect the battery to the CPU.
For mounting instructions, refer to the previous sections in this chapter.
If using a smart battery (IC698ACC701C or later, or IC695ACC302), connect the enabling
cable to the battery using the 4-pin connectors.
Note:
If using the rechargeable battery (IC690RBT001), securely mount the battery and its charger
(IC690CRG001) to the panel mounting surface before attempting to connect the battery to
the CPU. For mounting instructions, refer to the previous sections in this chapter. Insert the
Batteries
Disconnect the enabling adapter cable from the battery pack when the battery is not
attached to a CPU (when the enabling adapter cable is connected, the battery drains to
support the smart circuitry, even if it is not attached to the CPU).
Section 2
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